Supporting-clamp.



c. T. TOBIASON & o. SWANSON.

SUPPORTING CLAMP.

APPLICATION FILED JUNE 13, 19H.

Patented Ap1'.29,1919.

CARL T. TOIBIASON AND OLOF SWANSON, 0F SYGAMQRE, ILLINDIS; SAID TOBIASONASSIGNOR TO SAID SVTANSON.

SUPPORTING-CLAMP.

menses.

Specification of Letters Patent.

Patented Apr. 29, Milli).

Application filed June 13, 1917. Serial No. 174,559.

To all whom it may concern:

Be it known that we, CARL T. Toemson and Owl SWANsoN, of Sycamore, inthe county of Dekalb and State of Illinois, have invented certain newand useful Improvements in Supporting-Clamps, of which the following isa specification.

This invention relates to improvements in supporting clamps. One objectof the invention is to provide novel means whereby advertising cards,signs, announcements and the like may be readily suspended from surfacesnot ordinarily accessible for this purpose, such as store windows, glassdoor panels and the like, without in the least damaging or defacing thesupporting surface. With the foregoing and other objects in view theinvention consists in the combination and arrangement of parts to behere-' inafter fully described, pointed out in the appended claims andillustrated in the accompanying drawing which forms a part of thisspecification and in which- Figure 1 is a front view of the supportingclamp illustrating its application.

a Fig. 2 is a perspective view of the clamping element illustrating itsapplication.

Fig. 3 is a fragmentary view of a slightly modified form of clampingdevice showing its application.

Fig. 4 is an enlarged fragmentary view of Fig. 3 taken at the pointdenoted by the arrow 4'.-

Like reference characters denote corresponding parts throughout.

Our supporting clamp includes a rubber suction cup 1 which, upon beingpressed against a window pane or similar smooth surface 2, will adherethereto in a well known manner. The cup 1 is provided with a pin 3 whichcarries an inverted substantially U-shaped bracket 4:, said pinextending through apertures 5 formed in said bracket. The sides of thebracket from its free ends are formed with regular waves or undulationsthroughout the greater part of their length and teeth 6 are punched fromsaid sides thus forming, in said sides, the apertures 7. The teeth 6 arespaced apart and are formed in the outwardly bulged portions of theregularly curved sides and between said. teeth the claws 8 are securedby hinges 9 to the bracket 4. In the form shown in Figs. 1 and 2 thefree ends of the claws have a bearing against the card or device 10 andthe teeth 6 also engage the device 10. In Figs. 3 and -1 the claws S areformed with apertures 11 through which the free ends of the teeth 6 mayproject for engagement with the card 10, the teeth 6, when the sides ofthe bracket are pressed together, having a bearing upon the base of theapertured portions 11 of said claws. A ring 12 encompasses the bracket land when moved toward the free ends of the same will serve to force saidends toward each other thus driving the teeth and claws into positiveengagement with each other and with the card 10 when it is desired thata very firm purchase upon the same be had. It will be observed that theteeth 6 will serve effectually, when the bindingring 12 is applied tothe sides of the bracket to space the free ends of the claws 8 awnfromthe bracket-sides and to retain said claw-ends in engagement with theelement 10.

Whatis claimed is l. In a supporting clamp, a U-shaped bracket, teethformed in the sides of said bracket. movable claws carried by the sidesof said bracket, and an annular binding element carried by said bracket.

2. In a supporting clamp, a U-shaped bracket, apertured claws hinged tosaid bracket, teeth formed in the sides of said bracket and adapted toproject through the apertures in said claws, and a binding ringadjustably carried by said bracket.

3. In a supporting clamp, a U-shaped bracket, a binding ring adjustablycarried by said bracket, apertured claws hinged to said bracket, andteeth formed in the sides of said bracket and projected through theapertures in said claws and, under pressure of said binding ring, havinga bearing upon the apertured portions of said claws.

4. In a supporting clamp, a U-shaped bracket, a binding ring adjustablycarried In testimony that we claim the foregoing 10 by said bracket,apertured claws hinged to as our own We have hereto affixed our signasaid bracket and spaced away from each tures in the presence of twosubscribing witother, and inwardly bent teeth formed in nesses.

the sides of said bracket and projected CARL T. TOBIASON. through theapertures in said claws and, OLOF SWANSON. under pressure of saidbinding ring, having Witnesses:

a bearing upon the apertured portions of J .VV. LmnsTROM,

said claws. VICTOR NELSON.

Copies of this patent may be obtained fonfive ceiit's'ealch,by'addressing the Commissioner of Patents Washington, D. G.

